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The SARS-CoV-2 Total Antibody Spike Semi-Quantitative Test detects antibodies to the COVID-19 spike protein, indicating an adaptive immune response from recent or prior infection. Vaccinated individuals may also test positive, though results should not be used to assess immunity or protection. Doctors use this blood test to confirm past exposure, but it is not designed to diagnose active infection or predict reinfection risk.
The Interleukin-6 (IL-6) Test measures levels of IL-6, a cytokine involved in immune response and inflammation. Elevated IL-6 may indicate infection, autoimmune disease, chronic inflammatory disorders, or certain cancers. Doctors order this test for patients with persistent fever, fatigue, or suspected sepsis. Results help assess inflammation severity, guide treatment, and monitor disease progression in autoimmune, infectious, or metabolic conditions.
The C-Reactive Protein (CRP) Test measures CRP levels in blood to detect inflammation in the body. Elevated CRP may indicate infections, autoimmune disorders, or chronic diseases such as arthritis, cardiovascular disease, or inflammatory bowel disease. Doctors use this test to assess acute illness, monitor treatment response, and evaluate risk for heart disease. The CRP test provides key insight into inflammation, immune health, and overall wellness.